<!DOCTYPE html>
<html>
    <head>
        <title>404</title>
    	<meta charset="utf-8">
    	<meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" />
        <style type="text/css">
        	*{padding: 0px;margin: 0px;}
        	html{
        		height: 100%;
				overflow: hidden;
        	}
        	body{
        		background-color: #AAA;
        		background-size: 100% 100%;
        		background-image: url(../static/img/500.jpg);
        	}
        	.xiaoxi{
        		display: block;
        		position: absolute;
				top: calc(75% - 20px);
				left: calc(50% - 50px);
        		width: 100px;
        		height: 40px;
        		color: #FFF;
        		font-size: 14px;
        		text-decoration: none;
        		text-align: center;
        		line-height: 40px;
        		border-radius: 2px;
        		border: 0px #CCC solid;
        		background-color:rgba(255,255,255,0.3);
        	}
        	.xiaoxi:hover{color: #DDD;}
        	
        </style>
    </head>
    <body>
    	<a href="javascript: parent.sp.selectMenu(0);" class="xiaoxi">返回首页</a>
 	</body>
</html>